Here are some links that you can use to challenge your thinking across the curriculum areas.

Math
http://www.ixl.com/math/grade-5
(5th grade math practice-all areas)

http://mathjourneys.com/mathsix
(6th grade math practice-all areas)

Literacy

A great way to build vocabulary and word study skills is to play Scrabble. Take out a board game; it is a fun way for the whole family to get involved!

http://teacher.scholastic.com/activities/scrapbook/
(Use this website to create a scrapbook that shows what you know about a character in a book)

http://www.scholastic.com/teachers/story-starters/
(Use this website to create a story)

http://www.internet4classrooms.com/skill_builders/plurals_language_arts_seventh_7th_grade.htm
(word study games for plural nouns)